Shuttle-feeler mechanism for looms.



APPLIGATION FILED MAR. 10, 1913.

Patented. Mar. 3l, 1914i.

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2 SHEETS-SHEET 1.

Inventor. Harm hm/s,

H. A. DAVIS.

SHUTTLE FEHLER MEGHANISM FORLooMs.

APPLICATION FILED MAR. l0, 1913.

Patented Mar. 3l, 1914.

2 SHEETS*SHEET 2.

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nvehor. Harm A. Davis.

bgmoa. HLM/f A Il nis.

in connection with 4plenishing l for replenishment the shuttle feeler is actunot infrequently happens y tions are such nanna a.

DANS, OIF HOPQEDALE, MASSACHUSETTS,

ASSGNGB; T0 @MEER COMANY;

@E HGPEDALE, MASSACHUSETTS, A CURORATXON OlE MAINE.

S'UTTLE-FEELER MECHANSM FOR LOOMS.

Specification of Letters Patent.

Application led March 10, 1913. Serial No. 753,283.

To all whom if; muy Concern:

Be it known that lf, HARRY citizen of the United States, residing at Hopedale, county of Worcester, State of Massachusetts, have invented 'an lmprovement in Shuttle-freeler 'Mechanism for Looms, of 'which the following description,

the accompanying drawing, is a specification, like characters on the drawing representing like parts.

A.. avis, a

'lhis invention relates to looms of the type wherein the running filling is replenished prior to complete exhaustion and in which a shuttle feeler is employed to re-l strain the loperation of the replenishing mechanism in case of an improperly boxed shuttle, and in which means are provided for parting the spent filling between the cloth and the shuttle, such parting means being usually supported by, or to move with, the shuttle, feeler. y

The construction and operation of shuttle feelers and thread clamping and parting instrumentalities have been the subject of a number of patents and these matters are familiar to any one skilled in this art. The shuttle feeler is commonly r.mounted on a swinging or pivoted support to move toward and fromy the lay and to pass in front of the shuttle nose when the lay beats up and the shuttle is properly boxed at the reend of the loom. Upon the call ated but if the shuttle is improperly boxed the shuttle feeler, contacting therewith7 restrainsi the operation of the filling replenishing 'mechanism rlChe thread clamping and parting means, usually carried by and moving with the shuttle feeler, seize the filling of the filling carrier to be abandoned, sever it near the shuttle, .clamp the end and carry it forward so as to bring the filling into the field of the usual temple thread the end of cutter which thereupon severs the filling close to the edge of the cloth. The thread. clamping and parting instrumentality as it `moves forward from the fell must also move toward the edge of the cloth else it would stretch and break the filling end as it extends from the clamp to the fell. '1t

that the condithat while the operation of the replenishing mechanism is restrained throngh the action of the shuttle feeler, yet nevertheless such a movement of the thread clamping and parting instrumentality takes place, especially when the instrumentality is carried bythe shuttle feeler, as to result in the actuation of the thread parting means. When this happens severance occurs Without filling replenishment andl consequently two empty picks will be made in the cloth with the consequent objectionable thin place.

The objects of this invention are to provide a shuttle feeler mechanism in which the shuttle feeler support shall be reciprocated rectilinearly, thus doing away with a'pivotally mounted or swinging support and enabling the shuttle feeler to slide back and forth and a simple and eflioient construction to be provided forits operation. Furthermore the invention enables the shut.- tle feeler and its support to be'mounted above the plane of the cloth Where it is readily accessible. 'llhis enables the shuttle feeler mechanism to be constituted as a substantially' self-contained structure, which may be made up and fastened to the hopper or magazine stand or other suitable portion of the frame at the-top of the loom frame. `When, as herein shown, the thread clamping and parting means are carried by the shuttle' feeler, the entire mechanism, including the thread clamping and parting means, is thus also mounted at the top of the loom and becomes a substantially selfcontained structure which may be built and secured to the hopper o-rmagazine stand or the loom frame at the top ofl the loom.

Another object of the invention resides `in the construction and operation of the thread clamping and parting means. ln Patent No. 1,084,878, granted January 20th, 1914, on an application filed concurrently herewith, l have disclosed such a means operated only upon the actual transference of the filling carrier to the lay so that there can be no parting of an unabando-ned filling by vthe thread parting means and in which the actuation of the thread parting means is ef'- fected by or through the transfer of the fresh filling carrier. The object of the present invention in' this 'feature is to provide a simple and eflicient means for supporting and operating the thread clamping and parting means only upon the actual transference rau-,atea nar. ai, reta.

ofthe filling carrier, and preferably throughl the agency of the usual yielding bobbin sup-"pp ort.

Milt

ica.

will appear more-fully from the accompanyingv description and drawings and will be particularly pointed out in the appended claims.

The invention may be embodied in variousspecific forms of construction, depending upon the character of filling replenishing loom to which it may be applied. T0 illustrate the invention I have shownva preferred embodiment thereof in connection with a loom such as the well-known Northrop loom, in which the filling carriers are bobbins, the fresh bobbins being supported in a rotary hopper or magazine and transferred therefrom upon call by a transferring device to the shuttle on the lay. The drawings illustrate such a preferred form of the invention as embodied in the Northrop type of weft replenishing loom.

In the drawings- Figure 1 is a transverse section of a portion of the automatic filling replenishing loom having one embodiment ofmy present invention applied thereto, the' lay being shown in full lines on back center ,and in `dotted lines on front center, and only those parts being shown which are necessary to an understanding of the invention. Fig. 2 is a side elevation partially i-n vertical cross section of a portion of the mechanism shown in Fig. 1 with the shuttle feeler in its rearward position nearest the lay and with the thread clamping and part-ing means opened. Fig. 3 is a front elevation partially in vertical cross section of that portion of the loom shown in Fig. 1.` Fig. 4 is a detail in front elevation of a portion of the lay showing the trip or bunter mechanism. Fig. 5 is a detail view inl horizontal section on the line X-X of Fig. 3. Fig. 6 is a detail view in sideelevation of a modification of the connections for operating the shuttle feeler.

The lay A3; transferrer f to remove the filling carriers, or in. this case the bobbins bx, from the filling magazine or hopper F to' the shuttle S whenin the'box at the revplenishing side of the loom; the controlling rock shaft d and its adjuncts; the shuttle feeler 9; the fixed and movable blades 16 17v carried by the feeler and the plate 19 constituting the fixed member of theithread clamp; the usual guide stop /1/ against which the filling carrier or bobbin bx is brought in position for transfer; the yieldingly supported bobbin support consisting of a fiat finger 20 on a swinging plate 21 provided with a hub 22, the said finger being located adjacent the inner face of the disk .of the hopper and opposite the stop 72,', the finger upheld from the plattl 21 and straddling the stand I`2 of the hopper; the pin 24 passing through the finger 2.3, the stand F 2 and into the finger or support 20, thus pivotally mounting the bobbin support 20 and its connected parts on the stand F2', the

yillustrated .and

spring 25 held between the notched lug on' the rod being guided in the notched lug so that the stop h forms one-sideof a throat through which the filling carrier or bobbin passes to the shuttle, the yielding bobbin support or finger 20 forming the other side; are all parts, the construction and operation of which, except so far as hereinafter described, will be familiar to one skilled in the art, andare substantially the same as patent.

The construction and operation 'of the specific devices Vwhich I have herein illustrated asa preferred form for embodying the present invention in a loom of the type illustrated, will now be described.

The shuttle feeler and the thread clampdescribed in my aforesaidv ing and partin instrumentalities-in the prej ferred form o this invention constitute, as

has been pointed out,` a substantially selfcontained structure, which may be mounted or secured above the plane of the cloth, and to some portion.v of the loom frame. As herein shown, these parts yare mounted on a supporting bracket 40 having a socket41 fitting over the transferrer hub 42 and locked in place thereonby the set screw 43. Thissupporting bracket 40 has an upwardly projecting arm 44 and a horizontal and forwardly projecting arm 45. The arm 45 terminates in a bearing socket 46 in which is secured by set screws 47 a guide bar 48 projecting rearwardly toward the lay.

The shuttle feeler support is constituted as a sleeve 49 mounted to slide or reciprocate rcctilinearly upon the guide bar 48.l Asupporting arm 5() depends from the sleeve 49 and terminates in the shuttle feeler 9 of the usual construction already referred to.l

Upon this supporting arm 50 -are mounted in the usual manner the xed member 19 of the thread clamp and the fixed and movable blades 16 17 of the thread parter and its adjuncts. i j

The upwardly extending bracket arm 44 terminates in a hub 51 `having pinned therein and projecting therefrom a stub shaft 52.

A bell crank lever 53 is fulcrumed on the l stub shaft 52 and is held in place by a cotter pin 54.. A helical spring 55 surrounds the fulcrum sleeve ofthe bell crank lever 53 and is securedat one end 56 Ito the'bell crank lever and at the opposite end 57 to the hub nooners 49 is such as to cause this movement to take;

pla-ce. The shuttle 'eeler support 49 is, therefore, provided with a laterally projecting arin 61 v'formed into astud 62 at its end fitting loosely in an aperture in the lower end ci' the arrn 60. A spring 68 connected to the arm G0 and to a stud 64 projecting from the arm 6() holds the stud 62 snugly against the aperture in thel arm and prevents rattling" and lost motion. llt will thus be seen that as the bell crank lever swings about its tulcrurn it causes a rec-f' /tilinear reciprocating of the shuttle foeler support, and by reason'of the connection illustrated, also causes a swinging or rotary movement of the shuttle teeler support on its axis.

The controlling rock shaft d has secured thereto and projecting rearwardly therefrom the usual arm al. This arm .is held yieldingly downward by the usual spring SX and is raised by the' rocking of 'the shaft d whenever a replenishment of lilling is called for by rneans well known andcommon. The

bell crank lever 58 in the form of the invention herein shown has its shorter arm 65 connected to the free end of the arm d by a. link 66. This link is pivoted at its lower vend to the arnrd12 and at its upper end is provided with a slot 67 fitting over a stud 68 on the arm 65. The parts therefore normally occupy the position shown in Fig. l, the spring SX holding the arin d down and throuoh the link 86 and the bell crank lever 53 ho ding the shuttle feeler support in its --'orward position. 1When a replenishment of lillin .is called `for the shaft d rocks, raising1 tne arm d, and consequently the link 66; and thereupon `the spring 55 cornes into action swinging the bell crank lever 53 and moving the shuttle eeler support rearwardly.

The shuttle feeler may effect its functions in various ways, but as an efcient and sirnple-construction l have provided the mechanism now to be described.

The transferrer f pivotally mounted on the transferrenhub carries a downwardly projecting forked arm 70. i stud 71 is pivoted anda coil spring 2 is attached at one end to theI -forked arm 70 and at the otherend tothev head of the stud 7l. A transterrer operating dog is shown comprising-.j a nose v l v screw 84 passing in the lower end ot' the forked arm 70,

` an w piece 73 and a support is rigidly connected` to the stud land thenose piece 73 is adjustably mounted on the support, being providedvwith a'groovefo sliding on a rib 76, a loolt 77 holding the the parts together. ing through the support, engaging piece 73 and provided with a lock nut the nose Z8,

enables an accurate adjustment to be made.

lt will be seen that the-.springn T2 acts to hold 'the free end of the nose piece'u-pward i 4. The support `74 A set screw 78 pass- 'Y and to guide it against'the extended portion 80 of the base plate ot the hopper Faso that the effective end-ot the nose piece `nieves *i rectilinearly. The bunter in this form of the mechanism is moved hy the shuttle feeler into position to strike thedog and cause the operation of the transferrer. rlhe bunter C2 is carried by a horizontal shaft 8l journaled in bearings 82 projecting from a base plate y89 secured on the face ofthe lay. A, and a trip 88 is likewise-secured to the shaft 8l inthepath of a heel 84 depending from the shuttle eeler -support. spring 85 connected at one end to the shaft 8l and the otherA end -to one of its hearings 82 acts normally to swingthe bunter and trip -forwardly into the position, as shown 'In Figi. l. A' set screw 86 serves to adjust the trip 88 rotarily on theshat 81 and a lset through a depending?,` lug 88 from the bunter abuts against the base plate 89, thus serving to adjust the forward position of the bunter and trip.

ln the operation of the mechanism, when a replenishment of filling 'is called for, the shuttle feeler support 49. is'moved rearward nectilincarly on the guide bar 48 until it is stopped by the pin 90 at the rearward end-v of the guide bar, entering` a slot 91 in the end of the shuttle feeler support. This construction not only limits the rearward movement of the shuttle eeler support, -but locks it against twisting onthe guide bar. lt the. shuttle is properly boxed when the lay beats up the trip 83 striking the heel 84 of the shuttle Vteeler support will throw the bunter C2- into position, so that it\will strikevthe nose piece 'Z3 and operate the transterrer f to elfect the filling replenishment. If, however, the shuttle is improperly boxed, the

shuttle feeler will contact with the shuttle, the

trip 88will not reach the heel 84, the bunter C2 vill accordingly notbe-swung into position to strike the nose piece 73, and the shuttle eeler and its support will be pushed forillustrated lthe movable memberv 17 of the vthread clamp and parter is provided .with an upwardly extending ear 92, which, when the shuttle I feeler support 49 is moved rearwardly onthe guide bar 48, comes in contact with the lower end of the pin 90, the shuttle feeler support 'being c'ut away at the bottom, as shown at 93, for thatpurpose. Thus,

when the yshuttle feeler support reaches its rearward position, the thread clamping and Aparting means are opened. The closing action of 'the thread clamping and' parting means iseffectedby a striker arm 31 mov'- able with the bobbin support 20. In the construction,illustrated'this striker arm 31, shown as an L-shaped bar, is locked in place by set screws 32 in a bored out projection 130 in the finger 23, already described, Aand is thus both longitudinally and rotarily adjustable to give any desired position to the free end' of the striker arm. When the shuttle feeler support is in'its-rearward position, as shown in Fig. 2, the surface 94 of the movable member 17 of the thread clamping and parting instrumentality isy beneath the free end of the striker arm 31,l

so that if, andonly if, the bobbin support 20 is moved downwardly to allow of the discharge of the bobbin, the striker arm will bemoved simultaneously contacting with the springs being thus Opposed to eachother in,

'l their action, andthe spring Sx being by far by the usel of but a single spring.

the more powerful. In the constructionv shown in' Fig. 6 I obviate this oppositionof two springsand secure the desired results In this Fig'. 6 d is the controlling rock shaft, d the arm connected thereto, 49 the shuttle feeler support, 48 the guide bar therefor,

v 53 the bell crank lever, all as just described.

In the construction of Fig. 6 there is, however, no spring at the hub o f the lever 53.

The link 660 is pivoted at its upper end directly to the short arm of the bell crank lever53, and at its lower end to a leve'r 661 fulcrumed at G62 to the end of the arm d. The opposite end of the lever 661 is connected to the usual spring S* and this end of the levercontacts at 663 with the arm d. The operation of this construction will be apparent. .The arm CX12 rises upon` the call-for replenishment and 'the spring SX holding the lever 661 in contact witht-he arm du lifts the link 660 and thereby the bell crank lever 53 swings to move thevshutf tle feeler support rearwardly. The spring SX ret-urns the parts to the position shown in Fig. 6, and when the-shuttle feeler support is moved forwardly with the arm 12 still raised, the lever 661 rocks on its fulcrum against/the action yofthe spring S". Thus the same results are secured by the 'use of a single spring as in the construction previously described.

Having fully .described vmy' invention,

what `Ijclaim -as new and desire to secure f by Letters Patent is 1. An automatic fillingvreplenishing loom comprising a bracket presenting horizontal and vertical arms, a rectilinear guide .bar mounted in and projecting from the horizontal arm, a shuttlefeeler, a support for 'the shuttle feeler mounted to reciprocate on saidguide bar to carry the feeler into and out of feeling position, and means actu# ated upon the call for filling'replenishments mounted upon said vertical arm and con nected to said support for moving the same.

. 2. An. automatic filling replenishing loom comprising a bracket presenting horizontal and vertical arms, a rectilinear vguide bar mountedin and projecting from the horizontal arm, a shuttle feeler, a support for the shuttle feelei` mounted to reciprocate on said guide bar to carry the feeler into and out of feeling position, a bell crank lever fulcrumed on said vertical arm having gne arm connected to the said support, and means connected to the other arm of said bell crank lever and controlling the move, ment thereof upon the call for fillingre` plenishment. T l ,vv.

3. An automatic filling replenishmg loom comprising -a bracket presenting horizontal and vertical, arms, a rectilinearguide bar mounted in and projecting from the horizontal, arm, a shuttle feeler, a support. for the shuttle feeler mounted to reciprocate on lsaid guide bar -to carry the feeler into and out of feeling position, abell crank lever fulcrumed on said, vertical arm, one arm of said bell crank lever being connected to` said" support, a spring connected to and movingl the bell crank lever to move the support and carry the shuttle feeler into feeling position, and means connected to the other arm of said l bell'crank lever to lcontrol the movement thereof upon the call for filling replenishment.

4.' An automatic lling replenishing loom comprising a bracket presenting horizontal and vertical arms, a rectilinear guide barmounted in and yprojecting from the horizontal arm, 'a support mounted to slide and rotate on said guide bar, a thread clamping and parting means mounted on said support., an arm projecting laterally from said support, Za lever fulcrumed on the vertical bracket arm 'and connectedlitfff4 said laterallyY itl ' support mounted clamping and breaking of the filling as naar,

and means for swinging said leverv controlled by the call for filling replenishment, whereby upon lthe movement of said lever a simultaneous rectilinear and rotary movement is given to the said support, thus preventing the thread clamping means from breaking lthe filling as it comes forward carrying the filling end.

5. An automatic filling replenishing loom comprising a rectilinear g1. 'de bar supported above t-he plane of the cloth, a sleeve to slide and rotate on said guide bar, a shuttle feeler and thread parting means mounted on and carried by said support, and means controlled by the call for filling replenishment to cause the simultaneous rectilinear and rotary movement of said sleeve on said guide bar.

6'. An automatic filling replenishing loom comprising a shuttle feeler, a support therefor, and means for guiding said support rectilinearly during the movement of the feeler into and out of feeling position.

7. An automatic filling replenishing loom comprising a shuttle feeler, a support therefor, a rectilinear guide for said support, whereby the shuttle feeler support moves rectilinearly kto carry the feeler into and out of feeling position.

8. An automatic filling replenishing loom comprising a bracket, a rectilinear guide on said bracket. means for securing the bracket to the loom frame to locate said `guide above the plane of the clot-ln a shuttle feeler, a shuttle fceler support mounted to `slide on said guide, and means carried said bracket for sliding said support to bring the feeler into feeling position 9. An automatic filling replcnichingv loom comprising a rectilinear guide, a support mounted for rectilinear and rotary movement on said guide, a shuttle feeler and thread clamping and parting means mounted onisaid support7 and means `for giving a partial rotation to saidsupport as it moves forward on said ,guide with the thread clamping means carrying 4the filling` end.

10. An automatic filling replenishing loom comprising a support, a shuttle feeler and thread clamping and parting means mounted on said support, and means for giving a simultaneous rectilinear and rotary movement to said support to move the feeler into and out of feeling position and to prevent the thread clampforward carrying` the fillprojecting arm,

ing means moves ing end.

11. In an automatic filling` replenishing loom comprising a layl a replenishing magazine for the fresh filling carriers and a transferrer for transferring a fresh filling carrier from the magazine to the lay, the

combination of a rectilinearly movable support, a shuttle feeler and thread clamping eis and parting means mounted on said support, and means actuated by or through the transfer of the fresh filling Carrier from the magazine to the lay to actuate the thread clamping and parting means to clamp and part the thread of the filling carrier to be abandoned.

12. An automatic fillin ;replenishing loom comprising a hopper `release a fresh'filling carrier from the hopper, a rectilineargguide, thread vclamping and parting means supported and movable on said guide, and means carried by and movable with said lling carrier support to actuate the thread clamping and parting means to clamp. and part the thread of the filling carrier to be abandoned.

13. An automatic filling replenishing loom comprising' a hopper for the fresh filling carriers, a fillinof carrier snppert movable to release a fresh filling carrier from the hopper, a rectilinear guide, thread clamping and parting means supported and movable on said guide, and means carried by and movable with said filling carrier support to .actuate the thread clamping and parting means to clamp and part the thread of the filling carrier to be abandoned, and means carried by said guide for opening the thread clampingv and parting means when moved to rearward position. f

l/l. An automatic filling replenishing loom for t ie fresh filling carriers, afiiling carrier support movable to comprising a hopper for the fresh filling carriers, a filling carrierA support movable to release a fresh filling carrier from the hopper, a brectili-igiear guide bar, thread clamping and parting means supported from and guided on said guide bar, an arm carried by and movable with said filling` carrier support and having its end projecting over the thread clamping and parting means to clamp and part thelthread ofthe filling carrier to be abandoned upon the releasing movement of said filling carrier support.

l5. An automatic lling replenishing loom comprising a rectilinear `guido bar, a support mounted to move rectilinearly on said guide bar. a shuttle feeler carried by said support, a heel projecting from said support forward of the shuttle feeler, a lay, a replenishing magazine for the fresh filling carriers` a transferrer for transferring :iv

stop on said guide in the path ofsaid ear' and adapted tobe struck thereby and move said member to open the clamp and parterupon the rearward movementvthereof, and a 10 striker arm connected to and movable with -thebobbin support to strike and actuate said movable member to clamp and part the ifilling upon the transfer of a bobbin. K

In testimony whereof, I have signed my name t0 this specication, in the presence of 15 two subscribing Witnesses.

HARRY A. DAVIS. Witnesses:

L. S. BURBANK, DANA OsGoOD.

Copie: of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

. Washington, D. C. 

